baber/WOPTO huggingface dataset:
Patent GB-517092-A (GB)
Title: Improvements in electric discharge devices
IPC: H01J61/10
Filed: 1938-08-17
Abstract: 517,092. Discharge apparatus. GENERAL ELECTRIC CO., Ltd. (Patent-Treuhand Ges. fur Elektrische Gluhlampen). Aug. 17, 1938, No. 24249. Addition to 496,643. [Class 39 (i)] . In gas filled discharge tubes as described in the parent Specification, part of the space filled by the glass wool 12, is occupied by rigid rings 20 of refractory insulating material such as ceramic materials of sintered alumina or zirconia. The rings may be spaced from the wall of the envelope 1 as shown or may be a loose fit therein, and the electrodes may be coated externally with a refractory insulator such as zirconia.
Patent GB-1148308-A (GB)
Title: Printing of thermoplastic articles
Inventor: SMAROOK WALTER HENRY
IPC: C09B63/00
Filed: 1966-05-31
Abstract: 1,148,308. Printing process. UNION CARBIDE CORP. 31 May, 1966, No. 24289/66. Heading B6C. In order to print on the surface of a plastic article, e.g. of polyethylene, of a thickness of not less than one mil and a secant modulus of from 1000 to 400,000 p.s.i., pigment particles of average diameter particle size from 0À02 to 200 microns are blasted from a gun-like structure on to the surface such that they penetrate and form a design layer flush therewith. The particles may be used alone, mixed with an 'impactor', such as sand, or coated on larger carrier particles. The printed product may be waxed and polished or subjected to heat treatment. Suitable designs may be effected by directing the gun-like structure to appropriate parts of the surface or by using masking sheets. In the described embodiment an air gun 14 propels particles of a pigment 9 against a plastic article 5 which by appropriate rotation of supporting rollers 3 is moved relative to the gun. Excess pigment falls to the bottom of a bin 6 for subsequent recycling. A plurality of air guns may be used for multi-colour effects. Conventional masks may be used.
Patent GB-1036274-A (GB)
Title: 1-oxo-isoindoline derivatives
Inventor: LEE GLYN EVAN
IPC: C07D209/46
Filed: 1963-06-18
Abstract: The invention comprises isoindoline derivatives of the formula <FORM:1036274/C2/1> wherein Hal represents a halogen atom, preferably chlorine or fluorine, and R represents a hydroxyalkyl group, a cycloalkyl group containing 5 to 8 carbon atoms, or a carboxyalkyl carbonyloxyalkyl group, and, where R represents a carboxyalkylcarbonyloxyalkyl group, alkali metal and ammonium salts thereof (alkyl in all the above cases containing up to six carbon atoms), and the preparation thereof either by reduction of a compound of formula <FORM:1036274/C2/2> or by the reaction of a diazonium salt of a compound of formula <FORM:1036274/C2/3> with a cuprous halide such as cuprous chloride, or, in the case where R represents a carboxyalkylcarbonyloxyalkyl group, by the monoesterification of the appropriate dibasic acid, e.g. succinic or adipic acid, or anhydride thereof, by a compound of the first general formula above wherein R is hydroxy, in the presence of a base, e.g. pyridine, optionally followed by the formation of an alkali metal, amine or ammonium salt of the resulting acid.  Amino-1-oxo-isoindolines of the third general formula above are prepared by the reduction of 1-oxo-iso-indolines of the formula <FORM:1036274/C2/4> wherein R is protected hydroxyalkyl or cycloalkyl.  Nitro compounds of the last general formula above may be prepared by nitration, for example with concentrated sulphuric acid and sodium nitrate, of a compound of formula <FORM:1036274/C2/5> wherein R is a protected hydroxyalkyl group, e.g. an acetoxy group, or is a cycloalkyl group.  Other methods of preparation of compounds of the invention are outlined.  Pharmaceutical compositions in conventional forms for oral administration, having use in the treatment of hypertension, comprise a compound of the first general formula above and an inert diluent or exipient.
Patent GB-443227-A (GB)
Title: Improvements in or relating to electric switches operated by a liquid
IPC: H01H35/18
Filed: 1934-08-23
Abstract: 443,227. Actuation of switches. POTTER, A. C., Dysart Road Ironworks, Grantham. Aug. 23, 1934, No. 24320. [Class 38 (v)] A float e mounted on a tube d slidable on a pin c carries on its upper face a disc valve f and guide cup g adapted when raised by liquid into the position shown to close the lower end of a tube a supported in brackets b. On a further rise in the liquid level, liquid enters holes a<3> in the tube a and submerges the bared ends of conductors i<1> to complete a circuit to a pump which lowers the liquid level. When the level has fallen sufficiently to lower the float e, the valve f is opened and liquid flows out through holes g<1> in the cup g and the circuit is broken. Instead of the liquid bridging the circuit between the conductors, movable contacts operated by the liquid may be provided in the tube a.
Patent GB-1332920-A (GB)
Title: Method of making a brush
IPC: G03G21/10
Filed: 1970-05-20
Abstract: 1332920 Brushes XEROX CORP 21 Dec 1970 [30 Dec 1969] 24343/73 Divided out of 1332919 Heading A4K A strip of fabric 42 having a glass fibre pile and a thermoplastic backing is wound around a mandrel 41 and a heater 52 is inserted into the mandrel to heat the thermoplastic so as to fuse together the abutting edges of the strip and to lock the pile in the backing. Preferably the backing is polypropylene and the mandrel is metal or phenolic resin - glass fibre laminate. The brush may be circular, semicircular, rectangular or oval and is intended for use in xerographic copiers, Specification 1332919.
Patent GB-302619-A (GB)
Title: Improvements in automatic safety devices for gas-consuming apparatus
IPC: F23Q9/04
Filed: 1927-09-15
Abstract: 302,619. Wade, H., (Schar, F., and Theumer, R.). Sept. 15, 1927. Pilot jets.-A safety cut-off device for closing the gas supply in the event of the flame being extinguished is actuated by a thermal bar heated by a pilot jet 15 supplied through a passage 13 formed in the body of the main burner.
Patent GB-140977-A (GB)
Title: Improvements in or relating to carriage threading devices
IPC: D04C5/00
Filed: 1919-10-06
Abstract: 140,977. Blydenburgh, D. Oct. 6, 1919. Bobbins, inserting into carriages; bobbins, threading.-A threading board equipped with means for holding the filled bobbins and the empty carriages and means for assembling bobbins and carriages threading the carriages and for holding the assembled carriages when threaded, is arranged as a simple manually operable device which may be readily adjusted to the convenience of the operator. The several elements are mounted on a base board 1 at the front of which is a threading stand comprising a fixed base 3 and a pivoted adjustable table 4 provided with stops 5, 6 for positioning the carriage. The stop 6 is made adjustable so that the table can take different sizes of carriages. When the table with the carriage upon it is tilted, an adjustable hook 7 passes through and threads the eye of the carriage. The swing of the table 4 is limited by a stop 24<1>. A bobbin holder 11 arranged to the right and back of the stand 2 consists of a cylindrical trough inclined rearwardly to an end 13. Directly behind the threader is a skeleton frame 14 for the reception of empty carriages, a bevelled strip 16 forming a stop for the carriage ribs and preventing the carriage grasped by the operator for placing on the table 4 from slipping out of his hands. The depressions 34 of the table allow the carriage to be removed without injury to the thread. The filled and threaded carriages are placed on posts 17.
Patent GB-240851-A (GB)
Title: Arrangements for operating electron tube devices from lighting or power circuits
IPC: H04B15/00
Filed: 1925-10-01
Abstract: 240,851. Jonasson, K, G., and Eriksson, E. G. Oct. 2, 1924, [Convention date]. Thermionic amplifiers and detectors; wired wireless systems.-Ordinary mains are used for supplying voltage to a thermionic valve, and in order to eliminate the humming due to variations in the tension of the supply an arrangement such as that shown in Fig. 1 adopted. Two resistances 5, 6, are connected across the mains A, B, with the filament 2 in series between them, the grid and plate being adjustably connected at 9 and 7 to the resistances 5 and 6 respectively. The mean grid potential is made up to the required value by means of a battery 10. Thus any change in the voltage of the mains will affect the current through the telephones 8 in one sense by way of the filament and plate voltages and in the opposite sense by way of the grid voltage, these two effects neutralizing one another if the tappings 7, 9, be suitably adjusted. In a modification the battery 10 may be replaced by a condenser, a grid leak being provided; and in a further modification the variations in voltage of the mains may affect the grid through an induetive instead of a conductive coupling. The principle may be applied to a system comprising a detector 1 and low frequency amplifier 21 as shown in Fig. 4, where three resistances 5, 25, 6, are connected across the mains A, B with the two filaments 2, 22 in series between them and choke coils 26, 27, next the mains. The grid circuit of the detector valve is tapped off the resistance 5 at 9 while its anode circuit, which is tuned and provided with reaction coupling at 31, is tapped off the resistance 6 at 7. The grid circuit of the amplifier is tapped off the resistance 25 at 32, and its plate circuit is tapped off the resistance 6 at 34. A switch 35 enables signals to be taken at pleasure either from an ordinary aerial 37 or from a condenser 38 connected across the mains, when these are used as an aerial. Modifications are described and shown in which one or both of the valves are of the tetrode type. In these cases one grid is connected. in the usual manner while the other is tapped off the resistance 5 or 25 so as to neutralize the hum arising from the mains.
Patent GB-532300-A (GB)
Title: Improvements in and relating to the preparation of the carbonate salts of calcium and magnesium and to products containing such salts
IPC: A61K33/14
Filed: 1939-08-25
Abstract: 532,300. Calcium and magnesium carbonates. McGEORGE, W., and MILNER, F. H. Aug. 25, 1939, No. 24504. [Class 1 (iii)] An intimate mixture of finely divided calcium and magnesium carbonates is precipitated by mixing a carbonate solution and a solution of calcium and magnesium salts. Suitable reactants are sodium carbonate and calcium and magnesium chlorides. The carbonate solution should be in excess, and after mixing the solution is digested at a raised temperature to convert the precipitate into a finely divided form. Specification 532,301 is referred to.
Patent GB-605318-A (GB)
Title: Improvements in and relating to the manufacture of substituted aryltrihalogenoethanes
IPC: C07C57/58
Filed: 1944-12-08
Abstract: a  : a  - Bis - (carboxy - alkyl - aryl) - b  : b  : b  - tri-halogenethanes (the aryl group being of the benzene series) are obtained by treating an aryl-substituted aliphatic acid in the presence of sulphuric acid or oleum as condensing agent with chloral or bromal in the anhydrous form or in the form of the hydrate or alcoholate or a reactive derivative thereof such as an acetal, e.g. the diethyl acetal; and they may be used either as such or in the form of their salts as a basis for insecticides. Specified water-insoluble salts are: those of an alkaline-earth metal (e.g. calcium) or of a heavy metal (e.g. copper); and specified water-soluble salts are: those of an alkali metal (e.g. sodium), ammonia or an organic base.  In examples: (1) a  : a -bis-(4-carboxymethylphenyl) - b  : b  : b  - trichloroethane is obtained by treating phenyl acetic acid with chloral in the presence of concentrated sulphuric acid; (2) a  : a -bis-(4-b -carboxyethylphenyl)-b  : b  : b -trichloroethane; and (3) a  : a -bis-(4-g -carboxy - n - propylphenyl) - b  : b  : b -trichloro - ethane, are obtained similarly from the corresponding acids. Specifications 547,871, 547,874; 590,826 and 605,317, [both in Group VIII], are referred to.  A sample has been furnished under Sect. 2 (5) of a  : a -bis-(4-carboxymethyl-phenyl)- b  : b  : b -tribromoethane obtained from bromal according to a similar procedure to that of the examples.ALSO:An insecticidal composition contains an a  : a -bis-(carboxyalkyl - phenyl)-b  : b  : b -trihalogenoethane or a salt thereof and a carrier therefor.  Specified salts are water-insoluble ones such as those of a heavy metal e.g. copper, or of an alkaline earth metal e.g. calcium; water soluble ones e.g. those of an alkali metal, ammonia or an organic base.  The water-soluble salts may be used in aqueous solution and the insoluble ones may be used in dry preparations, e.g. dusting powders and in liquid dispersions for spraying.  Specifications 547,871, 547,874, 590,826, [Group VIII], and 605,317 are referred to.
Patent GB-380584-A (GB)
Title: Improvements in locking means for windows, doors and the like
IPC: E05C17/28
Filed: 1931-09-01
Abstract: 380,584. Window stays. OHNO, T., 31, Haramachi, Koishikawa Ku, Tokio. Sept. 1, 1931, No. 24554. [Class 65 (i).] A guide member, rotated by a handle inside the window, is arranged on the window, and a member sliding on the guide member carries a stay arm pivoted to the window frame, the sliding member being locked, to hold the window in any position, by rotating the guide member by means of the handle to bring teeth on the guide member into engagement with corresponding teeth on the sliding member. In the construction shown, of which Fig. 3 is a plan of the window and Fig. 5 a vertical cross section, a cylindrical guide-rod 5 is mounted in bearings 6 in the top channel member 4 of the window, and is rotatable by means of a pinion 7 and a rack 8 connected to the handle of the ordinary fastening of the window. The rod 5 has a longitudinal rib 17 having teeth 18 on one side, and sliding on the rod is a cylindrical member 15, slit to admit the rib 17 and having on one edge of the slit teeth 19 corresponding to the teeth 18. This member 15 is fixed inside a member which fits slidably in the channel of the window and has pivoted to it a stay-bar 14, the other end of which is pivoted inside the upper channel member 13 of the window frame. As the window is opened, the member 15 slides along the rod 5, and is locked in any position by rotating the rod 5 to bring the teeth 18 into engagement with the teeth 19. The stay is entirely concealed when the window is closed, and never projects into the room.
Patent GB-1099254-A (GB)
Title: Apparatus for lifting and lowering a bath tub
IPC: A47K3/16
Filed: 1966-06-02
Abstract: 1,099,254. Bath lifting apparatus. ELECTROLUX A.B. June 2, 1966 [June 16, 1965], No. 24567/66. Heading A4N. An apparatus for lifting and lowering a bath tub by hydraulic means comprises two hydraulic lifters arranged at the short sides of the tub. An apparatus in accordance with the invention (see Fig. 1) is used with a tub 10 which is accessible from all sides, and at the head of the bath in a cylinder 13 placed on a ground plate a piston 17 operates, the upper part of the piston being supported in an inverted U-beam 18 attached below the short side 11 of the bath. At the foot of the bath a lifting arrangement is held in column 20 wherein there are two shelves for bearings journalling a shaft 25 which carries a lever attached to the shaft by a bushing. Below the lever is a cylinder with a piston rod and this hydraulic lifting means is suspended at its lower end on a shaft and at its upper end is connected by a pivot to the lever so that a link connection is obtained which is variable in length. On the shaft 25, lifting arms 33, 34 are fixed outside the housing 32. At the free ends of these arms axially aligned pins 36 (and 35 not shown) are directed towards each other which engage under a lifting yoke 37 placed under the flange of the bath at the short side 38 at the foot end. From the pump, a conduit (not shown) for pressure liquid passes down through the column and the floor to the hydraulic lifting means 12 at the other end of the tub.
Patent GB-615947-A (GB)
Title: An improved drive mechanism for helicopters
IPC: B64C27/12
Filed: 1946-08-19
Abstract: 615,947. Friction clutches. FRANKLIN, H. W. Aug. 19, 1946, No. 24580/46. [Class 80 (ii)] [Also in Group XXXIII] A centrifugally engaged friction clutch applicable to helicopter drives comprises spring- retracted weighted levers 4, Figs. 1 and 2, pivoted in the plane of the clutch axis on driving radial arms 3 and carrying near their pivots friction pads 12 engaging the outer rim of a driven wheel 9. Alternatively, Fig. 3 (not shown), the pads 12 may be on the same side of the pivots as the weights and engage the inner surface of a driven drum whose outer surface has gear teeth transmitting the drive to a meshing pinion. As applied to a helicopter of the kind described in Specification 615,292, [Group XXXIII], having two lifting rotors, the drive is taken from an engine 15 by a clutch 16, Fig. 5, of the above kind and transmitted through a gear 17 to a main shaft driving both rotor shafts 21, 24 through cone or multiplate slipping friction couplings 25, 26 and bevel gears. The engine 15 and clutch 16 may be duplicated, either both sets driving the gear 17 or each set driving through individual gears. When the engine speed falls sufficiently to disengage the clutch an arm 27, Fig. 7, may actuate through a mechanical linkage 28, 31, 33 either the propeller blade pitch change mechanism as to set the blades for autorotation, or a warning signal. In Fig. 9 (not shown), the linkage 28, 31, 33 is replaced by an electrical contact closed, when the clutch is disengaged, to complete a circuit operating a warning light or buzzer or an electrical control mechanism.
Patent GB-729337-A (GB)
Title: Improvements in or relating to the welding of pure metals or alloys
Inventor: LUCEY JOHN ANTHONY
IPC: B23K35/02
Filed: 1952-10-01
Abstract: 729,337. Welding by fusion. FUSARC, Ltd. Sept. 22, 1953 [Oct, 1, 1952], No. 24622/52. Class 83 (4). In gas shielded or submerged arc welding a continuous electrode is employed comprising a wire mesh surrounding a core wire with a coating containing one or more pure or alloy metal powders filling the mesh interstices. The coating constituents may include fluxing materials and are mixed with a binder for extrusion. A core 1 is surrounded by a mesh formed by an inner layer of helical wires 2, 3, 4, 5 and an outer layer of helical wires 6, 7, 8, 9 and the mesh interstices are filled with coating 10. A tube 12 moving in advance of the electrode deposits flux material 13 for submerged arc welding. According to the Provisional Specification the coating may be held in position by a combustible wrapping or sheath. Specification 584,299 is referred to.
Patent GB-890481-A (GB)
Title: An improved device for use in the detection of the presence of gases
Inventor: GIBSON CHARLES REID
IPC: G01N1/00
Filed: 1959-07-17
Abstract: <PICT:0890481/III/1> A device for taking a sample of a gas comprises three telescopic tubular rods and an aspirator bulb, the bulb forming part of a handle assembly connected to one end of the outer rod and being adapted for connection to any suitable gas detection instrument. The construction of the device is such that the tubular rods can be extended so that the end of the rod remote from the bulb can be positioned where the presence of gas is suspected, non-return valves being provided so that when the bulb is alternately squeezed and released a continuous flow of gas is supplied to the instrument. In Figure 2, the telescopic rod system consists of three sections (the joints between them being fluid tight), namely an inner tube 12, an intermediate tube 11 and an outer tube 10, the latter being joined to the aspirator assembly by means of the connecting member 13 fitted with a non-return valve 15.  The other end of the aspirator bulb 19 makes a fluid-tight joint with a hollow handle 20 provided with a non-return valve 22.  The end of the handle is fitted with a removable cylindrical plug 23 attached to cord 24.  In the bore of the handle is a nipple 25 which can be connected to a gas detecting instrument.  An upper bridge piece 26 constitutes a handle and a lower bridge piece 27 serves to protect the aspirator bulb.  In the Provisional Specification the rod may consist of jointed hinged sections.
Patent GB-1272065-A (GB)
Title: Improvements in and relating to pipe couplings
Inventor: WEBB JOHN WANLESS MCNAUGHTON
IPC: F16L19/075
Filed: 1968-05-23
Abstract: 1,272,065. Tube expanders; wheel cutters. CHARLTON WEDDLE & CO. Ltd. 21 May, 1969 [23 May, 1968], No. 24714/68. Headings B3J and B3W. [Also in Division F2] A tool for belling the end of a pipe P comprises semi-cylindrical jaws 20 pivoted at 22 and lockable together and carrying supports 26 for a plate 27 having in screwed engagement therewith a collar 28 within which is journalled a bar 29 carrying a rotatable frusto-conical member 31. The latter forms a bearing surface for rollers 32 which project through apertures 33 in a cage 34. By the use of tommy bars 37 the collar is advanced axially, and the roller assembly is rotated by applying a spanner to flats 38 or coupling a power tool to the cylindrical part 39 of the bar 29. A pipe cutting device comprises two semi-cylinders 41 hinged together by a pivot 42 and having at each end thereof cutter wheels 47 disposed in grooves 46 and freely rotatable on cap screws 48.
Patent GB-1220190-A (GB)
Title: Contact arrangement for high-tension switches
Inventor: BLEITREU ALEXANDER
IPC: H01H9/00
Filed: 1969-05-15
Abstract: 1,220,190. Switch contacts. E. SCHEUBECK. 15 May, 1969 [24 May, 1968], No. 24784/69. Heading H1N. Fixed contacts of a high voltage switch such as a transformer tap-changer are provided with means whereby they approach a spherical shape when not in use thereby enabling the dimensions of the switch to be reduced. A contact bar 1 mounted on an insulating support 12 has a dish-shaped screen 2 as shown and the space between the " dish " and contact bar 1 is covered by an annular domed member 3 urged outwardly by a spring 6, a circular plate 7 acting as a stop. When a pivoted contact (4, Figs. 2 and 3, not shown) comprising two spring- loaded arms (4a and 4b, Fig. 4, not shown) is moved into engagement with the fixed contact it depresses the member 3 so that the arms (4a, 4b) can embrace the bar 1 (Figs. 3 and 4, not shown) and as the contact is broken the spring 6 restores the generally hemi-spherical shape of the fixed contact. A screen 13 similar to screen 2 protects the terminal end of the fixed contact.